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感覚的競合下での訓練は視覚的知覚に持続的なバイアスを生じさせる
ArXiv
|February 6, 2026
まとめ
感覚的競合中の注意集中学習は、視覚的知覚を永続的に変化させます。訓練は知覚されるコントラストを変化させ、単なる識別能力の向上ではなく、主観的知覚の再調整を示しています。
科学分野:
- 神経科学
- 認知心理学
- 視覚的知覚
背景:
- 選択的注意は視覚的知覚を一時的に変化させることができます。
- しかし、知覚の外観に対するこれらの注意効果が学習され、永続的なものになるかどうかは不明なままです。
研究 の 目的:
- 感覚的競合条件下での注意訓練が、知覚される視覚的コントラストに永続的な変化をもたらすかどうかを調査すること。
- そのような訓練が主観的な視覚的知覚を再調整するかどうかを判断すること。
主な方法:
- 参加者は7日間のオリエンテーション課題訓練を受けました。
- 訓練には、顕著な注意散漫因子が存在する固定ターゲット位置(感覚的競合)または注意散漫因子が存在しない場合が含まれていました。
- 主観的等価点(PSE)を用いて知覚されるコントラストを測定しました。訓練前と訓練後に測定しました。
主要な成果:
- 感覚的競合下での訓練は、知覚されるコントラストの「プッシュプル」シフトを誘発しました。
- 訓練された位置の刺激はより高いコントラストを持つように見え、訓練されていない位置の刺激はより低いコントラストを持つように見えました。
- 注意散漫因子なしの訓練は、課題のパフォーマンスを向上させましたが、知覚されるコントラストは変化しませんでした。
結論:
- 注意訓練による感覚的競合の解決は、主観的な視覚的知覚の永続的な再調整につながります。
- これらの学習された知覚への影響は、応答バイアスの改善のみによるものではなく、頑健であり、新しい刺激に一般化されます。
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